Cycloaddition Reactions of Silyldiazoalkanes Involving Rearrangements from Carbon to Nitrogen
نویسندگان
چکیده
منابع مشابه
Chiral Induction in Cycloaddition Reactions of Azomethine Ylides to Synthesis of New Enantiomerically Pure Spiro Oxindolopyrrolizidines
An efficient one-pot three-component procedure for the synthesis of new chiral spiro-oxindolopyrrolizidines with highly regio-, diastereo-, and enantioselective from 1,3-dipolar cycloaddition of azomethine ylides and optically pure active cinamoyl oxazolidinone are described. The process occurs at room temperature in aqueous ethanol as green solvent and in the absence of any bidentate chelating...
متن کاملChiral Induction in Cycloaddition Reactions of Azomethine Ylides to Synthesis of New Enantiomerically Pure Spiro Oxindolopyrrolizidines
An efficient one-pot three-component procedure for the synthesis of new chiral spiro-oxindolopyrrolizidines with highly regio-, diastereo-, and enantioselective from 1,3-dipolar cycloaddition of azomethine ylides and optically pure active cinamoyl oxazolidinone are described. The process occurs at room temperature in aqueous ethanol as green solvent and in the absence of any bidentate chelating...
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The reaction of a series of allyl-substituted bis(phenylsulfony1)methanes or dimethyl malonates with 2,3-bis(phenylsulfonyl)l13-butadiene in the presence of base afforded alkenyl-substituted allenes in good yield. The reaction proceeds by initial attack of the soft carbanion onto the terminal position of the diene and subsequent PhS02elimination to give the phenylsulfonyl substituted allene. Th...
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Cycloaddition reactions between 1,3-butadiene and the C-terminated SiC(1 0 0)-c(2 · 2) surface have been addressed using quantum-chemical methods. The c(2 · 2) structure consists of ACBCA bridges between underlayer Si atoms which themselves form SiASi bonds. Of various possible reaction products, the one formed by a [2+ 4] reaction with the ACBCA bridge (giving a species resembling 1,4-cyclohex...
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ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1974
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v74-517